EPA alleges that the Barron County facility failed to comply with the mercury emission limit specified in its state operating permit and the federal plan for small municipal waste combustors.

EPA notified the facility of the alleged violations in March 2008 after receiving the results of stack tests conducted in 2006. EPA said the Barron County facility operates two incinerators capable of burning 40 tons of municipal solid waste per day.

The Barron County plant has 30 days from receipt of the complaint to file an answer and request a hearing. It may request an informal conference with EPA at any time to discuss resolving the allegations.